Mathematics
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Cosine: Formula, Rules & Examples
Cosine is a trigonometric function that relates an angle to horizontal position, right-triangle side ratios, and periodic motion. In a…
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Cosecant: Formula, Rules & Examples
Cosecant is a trigonometric function defined as the reciprocal of sine. For an angle θ, csc θ = 1/sin θ…
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Congruent Triangles: Formula, Rules & Examples
Congruent triangles are triangles with exactly the same size and shape. Their corresponding sides have equal lengths and their corresponding…
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Cone Volume: Formula, Rules & Examples
Cone volume measures the three-dimensional space inside a cone. For a right circular cone with base radius r and perpendicular…
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Cone Surface Area: Formula, Rules & Examples
Cone surface area measures the two-dimensional boundary covering a cone. For a right circular cone with radius r and slant…
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Circles: Radius, Diameter, Area
Circles are plane figures formed by all points that lie the same distance from a fixed center. That fixed distance…
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Circle Equation: Definition, Formula & Example
A circle equation describes all coordinate points located the same distance from a fixed center. For a circle centered at…
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Circle Circumference: Formula, Rules & Examples
Circle circumference is the total distance around a circle. For radius r, the circumference formula is C = 2πr. Because…
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Circle Area: Formula, Rules & Examples
Circle area measures the amount of two-dimensional space inside a circle. For a circle with radius r, the formula is…
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Chord Length: Formula, Rules & Examples
Chord length is the straight-line distance between two points on a circle. If a circle has radius r and the…
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